Publications associées à Lois de Fick

Enhanced Proton Conductivity in Y-Doped BaZrO3 via Strain Engineering

Nicola Marzari, Aris Marcolongo, Alexander Wokaun

The effects of stress-induced lattice distortions (strain) on the conductivity of Y-doped BaZrO3, a high-temperature proton conductor with key technological applications for sustainable electrochemical energy conversion, are studied. Highly ordered epitaxi ...

Wiley2017

Fast diffusion of water nanodroplets on graphene

Gabriel Aeppli, Gabriele Tocci, Ming Ma

Diffusion across surfaces generally involves motion on a vibrating but otherwise stationary substrate. Here, using molecular dynamics, we show that a layered material such as graphene opens up a new mechanism for surface diffusion whereby adsorbates are ca ...

Nature Publishing Group2016

Liquid CO2 processing of solid polylactide foam precursors

John Christopher Plummer, Yonghoon Yoon

Diffusion of CO2 in polylactide was modelled by assuming the diffusion coefficient to depend on CO2 concentration, c, according to D[c]=D[0]exp[Ac], where D[0] and A are empirical constants, with the aim of optimizing impregnation of nominally amorphous an ...

Sage Publications Ltd2016

Estimates of the temperature flux-temperature gradient relation above a sea floor

Andrea Cimatoribus

The relation between the flux of temperature (or buoyancy), the vertical temperature gradient and the height above the bottom is investigated in an oceanographic context, using high-resolution temperature measurements. The model for the evolution of a stra ...

Cambridge University Press2016

The effects of molecular diffusion in spatially encoded magnetic resonance imaging

Geoffrey Bodenhausen, Sina Marhabaie

In spatially encoded MRI, the signal is acquired sequentially for different coordinates. In particular for single-scan acquisitions in inhomogeneous fields, spatially encoded methods improve the image quality compared to traditional k-space encoding. Previ ...

Academic Press Inc Elsevier Science2016

MATHICSE Technical Report : Multiscale methods and model order reduction for flow problems in three-scale porous media

Assyr Abdulle, Ondrej Budác

A new multiscale method combined with model order reduction is proposed for flow problems in three-scale porous media. We derive an effective three-scale model that couples a macroscopic Darcy equation, a mesoscopic Stokes-Brinkman equation, and a microsco ...

MATHICSE2016

Particle diffusion in non-equilibrium bedload transport simulations

Christophe Ancey

This paper examines the importance of particle diffusion relative to advection in bed load transport. Particle diffusion is not included in existing approaches to bedload transport. Based on recent advances in the probabilistic theory of sediment transport ...

Elsevier Science Inc2016

Nuclear Quantum Effects in H+ and OH- Diffusion along Confined Water Wires

Michele Ceriotti, Mariana Rossi Carvalho

The diffusion of protons and hydroxide ions along water wires provides an efficient mechanism for charge transport that is exploited by biological membrane channels and shows promise for technological applications such as fuel cells. However, what is lacki ...

Amer Chemical Soc2016

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Lois de Fick

Enhanced Proton Conductivity in Y-Doped BaZrO3 via Strain Engineering

Fast diffusion of water nanodroplets on graphene

Liquid CO2 processing of solid polylactide foam precursors

The nature and role of advection in advection-diffusion equations used for modelling bed load transport

Estimates of the temperature flux-temperature gradient relation above a sea floor

The effects of molecular diffusion in spatially encoded magnetic resonance imaging

MATHICSE Technical Report : Multiscale methods and model order reduction for flow problems in three-scale porous media

Particle diffusion in non-equilibrium bedload transport simulations

Heat expandable biopolymers for one-step production of foam core sandwich composites

Nuclear Quantum Effects in H+ and OH- Diffusion along Confined Water Wires

Graph Chatbot

Chattez avec Graph Search

Nuclear Quantum Effects in H+ and OH- Diffusion along Confined Water Wires

Heat expandable biopolymers for one-step production of foam core sandwich composites

Particle diffusion in non-equilibrium bedload transport simulations

MATHICSE Technical Report : Multiscale methods and model order reduction for flow problems in three-scale porous media

The effects of molecular diffusion in spatially encoded magnetic resonance imaging

Estimates of the temperature flux-temperature gradient relation above a sea floor

Liquid CO2 processing of solid polylactide foam precursors

Fast diffusion of water nanodroplets on graphene

Enhanced Proton Conductivity in Y-Doped BaZrO3 via Strain Engineering

The nature and role of advection in advection-diffusion equations used for modelling bed load transport